Bosh-plate for blast-furnaces and the like.



l L.L.KN0X. BOSE PLATE FOB. BLAST FURNAGBSAND THE LIKE. AIJPTLJOATIO'N FILED AUG. 4, 1911.

l 9 l @l U@ Patented June 30, 1914.

{NVENTOR WJTNESSES TED sTATns PATENT onnicn.

g LUTHER L. KNOXA, OF NILES, OHIO, ASSIGNOR TO `KIEIYSTONE BRONZE COMPANY, OF PITTSBURGH, PENNSYLVANIA, A CORPORATION OF PENNSYLVANI Bossi-PLATE FOR BLAsT-FURNACES AND THE LIKE.

Moiano.

T all 'LU/iam it may concern.:

Be it known that I, Iiii'iiinn L. Knox, of Niles, in the county of Trumbull andState of Ohio, have invented a new and useful Iniprovenicnt in Bosh-Plates for Blast-Fun .naces and the like, of Ywhich the following is a full, clear, and exact description, reference being had to the accompanying drawings,`

forming part of this specification, in which- Figure l is a vertical section of a portion of improved and inoie effective'character'I for introducing the cooling water thereto, and providing for an effective circulation of such water therein.

Referring to the accompanying drawings, in which I have shown the preferred embodiment of my invention, the iinineral 2 design'ates a hollow bosh platewhich'is preferably formed with a. lateraland also a vertical ia per toward its inner end, so that it is of less depth at its inner than at its onterend. The top 3 of the plate is also preferably arched transversely. The `hollow intcrior of the plate forms a chamber for a 'cooling liquidwhich is introduced therein by ineans of a pipe et, which extends inwardly through the outer eii'd wall 5 along one side of the interior chamber to a.point near the inner end thereof, where it is bent to form a transversely extending arm 6.

This arin ('is provided with means for discharging water against the inner end Wall 7 of the plate, such as the series .of openings Specification of Letters Patent. Application filed August 4, 1911.

i S, shown in Figs. 3 and 5 Patented J une 30, 1914. serial No. 642,336.

slots 9, shown in Fig. 6. The free end of the discharge arin 6 of the water pipe may be closed in any suitable manner, as by a plug 10. The outer end of the pipe et is provided with suitable means for its connection to a supply pipe 1l. The water discharged from the transverse arm 6 of the water pipe impinges directly against the inner end wall 7 of the plate where its cooling action is 'most effective..y The heated water rises to the upper portionpof the plate and escapes through the outlet connection 12, which preferably communicates with the highest point of the chamber. A blowpipe or clean' out connectibn 13 inay also be provided.

The bosh plate may, be conveniently` formed of plates or sheets of metal welded together, the water pipe being placed between the plates or sheets. beforethey are welded. I f

14 designates vertical stay bolts for bracl ing 'and swinging the structure.

I claim.'

A bosh plate for blast furnaces, comprising a. hollow `sheet metal segment-al body having a pipe extending therein from -the outer end thereof, the pipe entering said member adjacent to one of its side edges and extending inwardly to 'a point near the end wall thereof, the transverse arm of they pipe having a` plurality of discharge openings therein, the'upper'surface of the inenn ber being convex and there being a central discharge opening stantially as described.'v l

In testimony whereof, I have hereunto set my hand.

l LUTHER L. KNOX.

lVitnesses:`

Jnssn B. HnLLEn,

H. M. ConwiN.

or the series of at its outer end atsnb` -stantially the highest point thereof,v sub- 

